Throughout the Life Cycles Unit, students make observations and drawings in their Science Notebook as they observe the life cycles of animals and plants. Using drawings and texts, students record the anatomical and behavioral characteristics as well as the different moments of development of these living organisms. Students develop focused insight of an object under study and observe natural phenomena. They learn to select information that deserves recording and choose the most adequate ways of capturing such data.
In the first couple of lessons, students participate in planting bulbs and assembling an earthworm farm. They discuss how to care for animals and plants during their development and determine that living organisms need special conditions to ensure survival. Students observe the initial stages of life cycles of the two species. They observe and make notes in their Science Notebook during the whole unit.
The next section of the unit presents multiple concepts using the butterfly, such as information on the butterfly’s transformations during its life cycle. This emphasizes the concept of a life cycle, as students examine pictures of the butterfly in its different stages, and then organize the illustrations in the correct transformation sequence. This supports information about a complete life cycle. Students will play a game used to show the butterfly’s life cycle in different situations. Students increase their knowledge of insects and perceive the different challenges that the living beings face throughout their existence.
The following portion of Life Cycles pertains to the frog’s life cycle, which is characterized by metamorphosis. Students detect that by passing through physical transformations during its life cycle, the frog adapts itself to the environment in which it will live during its adult stage. The cycle begins in the water and ends on the land. Next, students become familiar with the embryonic development of a mammal by comparing the gestat